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SCI PN-8E (PN-38C) Control Knob 6.4mm Shaft - Matt Black - 20.3mm

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Brand: SCI  MPN: PN-8E (PN-38C) 6.4mm 
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Attractive matt black control knob from SCI with 6.4mm shaft and serrated finger-grip sides.

  • Diameter 19.5mm
  • Square mark in white indicates position
  • Designed to fit 6.35mm spindles
  • Grub screw fixing
  • Made from phenolic resin
Type Control knob
Shaft Diameter 6.4mm
Fixing Screw
Diameter 20.3mm
Colour Black
Material Phenolic resin

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Sensible knobs

Reviewed by: James Yale - 19 September 2018
I like these. The style is clean and unfussy. Screw fixing means they can go on most types of 6mm - 1/4" ish control shafts. Skirt does a fair job of hiding the control fixing nut&washer. Only a tiny white dot to indicate position, but it works well and is protected from dirt and wear in the recess across the centre line. Compared to some knob ranges, the prices are very low so it's suitable for projects needing many controls so long as you don't need colour coded functions like on an audio mixer. I have seen these knobs on some pro-audio products such as microphone pre-amplifiers. Rapid also have SCI ridged with metal cap knobs similar to what guitar effects makers call "Boss style" for similar money - I like those too.